Joint Astrophysics Colloquium

The Generation & Evolution of Cosmic Magnetic Fields

Ellen Zweibel

University of Wisconsin

Despite many years of progress in cosmology, the origin of magnetic fields remains a mystery, and many aspects of how magnetic fields evolve and are maintained are still unclear. I will review the current state of knowledge, describe a scenario for magnetogenesis, and talk about the current state of dynamno theory, including some nonstandard ingredients found only on galactic and intergalactic scales.